Inventor

HUMMELL III ROBERT EDGAR

US2 patents

Patents

2 patents

US6839251B2Jan 4, 2005

Apparatus and method for filtering voltage for an electrostatic precipitator

BHA GROUP HOLDINGS INC17 citations89

US6611440B1Aug 26, 2003

Apparatus and method for filtering voltage for an electrostatic precipitator

BHA GROUP HOLDINGS INC39 citations89